x+2x=-2+x

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Solution for x+2x=-2+x equation: 



x+2x=-2+x

We move all terms to the left:

x+2x-(-2+x)=0

We add all the numbers together, and all the variables

x+2x-(x-2)=0

We add all the numbers together, and all the variables

3x-(x-2)=0

We get rid of parentheses

3x-x+2=0

We add all the numbers together, and all the variables

2x+2=0

We move all terms containing x to the left, all other terms to the right

2x=-2

x=-2/2

x=-1

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